I am currently working with the Wiz550 S2E module, I am using the module to send QVGA (resolution of 320x240) images to our servers throught an API, the average size of an image is about 300Kbytes. I send 2 images at the same transmission, so the total amount of bytes are about 700Kbytes.
I have achieved to configure the module and send the images without problems, so far is working. My question is about if it is possible to modify the maximum size of the data block with the command AT+NSEND. Empirically, I found that the maximum data block that I can send is 1024Bytes, if I try to send something bigger than that I receive the following error: [F, 4], this error means that the parameter is out of range according to the datasheet.
Sending this amount of data fragmented into blocks of 1024bytes makes the transmission very slow.
I am wondering if It is possible to modify the maximum size of the parameter AT+NSEND or if you found a different solution for a problem similar to mine.
Thanks in advance.